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		<!-- 内联代码 -->
		<code>console.log();</code>表示在控制台输出消息<br>
		<code>List&Double&gt;
		<hr>
		
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		请按<kbd>ctrl+s</kbd>保存
		<hr>
		
		<!-- 代块码 -->
		<pre class="pre-scrollable">
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				retrun x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}
			console.log(fn(a));
			var a=5;
			function fn(x){
				return x+3;
			}console.log(fn(a));
		</pre>
		
		<!-- 变量 -->
		var <var>x</var>=6
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